Finding the Fourth Proportional to 107,119.43, 147,748.05 and 70,778.78

Step by Step Solution

1. Step 1: Write the proportion equation
   107,119.43 : 147,748.05 = 70,778.78 : x
2. Step 2: Convert to fraction form
   107,119.43/147,748.05 = 70,778.78/x
3. Step 3: Cross multiply
   107,119.43x = 147,748.05 × 70,778.78
4. Step 4: Simplify right side
   107,119.43x = 10,457,426,726.38
5. Step 5: Solve for x
   x = 10,457,426,726.38/107,119.43
6. Step 6: Final answer
   x = 97,624.00